Replacement of ABS Brake Controller for Olds Silhouette WITH traction control and ABS

Per my mechanic, my ABS controller is faulty per a ABS Controller code and check sum error when reading the engine computer log. During hot days after driving the van 30 minutes the ABS and Traction lights come on. They reset if the engine is turned off and allowed to cool as little as five minutes. Have priced replacement new controllers which are good for model years 2001 and 2002 only but also see compatibility for later assemblies that include the valve and controller for model years 2002-2004 with AWD and traction control. Some GM sites report the later model DELCO 12225995 controller and valve assembly is backwardly compatible to years when GM did not offer AWD in the minivans. I bought a NOS 2002 assembly on hopes that the entire assembly could fit in the same location without mods and operate in a 2001 FWD car with traction control. Barring that, perhaps the controller could be separated from the new assembly and operate ABS without idiot lights coming on. If not, there is no loss as the assembly is worth over 1500 retail, I can turn around and sell for enough to buy the 2001 ABS controller outright. So the million dollar question is will the 2002 parts work in the 2001 van?